These nut protection caps are specifically designed for use in children's play areas, a practical way to protect exposed hardware. Their construction and smooth surface reduce the risk of injuries, while their protective function helps extend the lifespan of bolts and nuts by preventing wear. Features -Color:Black -Material:Plastic -Size:3.30X1.30X1.30 cm/1.30X0.51X0.51in -Size:2.70X2.00X2.00 cm/1.06X0.79X0.79in -Note: bottom hole diameter: about 10 mm, suitable for M8/M10 screws -Enhanced safety: these plastic bolt protective covers are ideal for safeguarding children from exposed on playground equipment -Weather resistant: built to withstand outdoor conditions, these caps maintain their protective function in various weather environments -Quick replacement: designed for convenience, these nut caps can be easily replaced, ensuring continuous safety without hassle -Fit: suitable for a wide range of playground structures, these caps adapt to different bolt and nut sizes for versatile application -Reliable protection: the sturdy plastic construction ensures consistent safety and durability, making them a dependable choice for outdoor use Package list: 20 x Nut Caps